OF NEW ENGLAND. 365 
less very seriously molested, they build their nest every year 
in nearly the same place. The females vary as regards cour- 
age or prudence, some leaving their nest on hearing one’s 
approach, others waiting till the tree is rapped, and others 
until one has begun to climb or has even ascended several 
feet. I have never known them to attack man, when thus 
disturbed. The young are fed for several weeks after being 
hatched, and are often noisy. 
(d). The screams of our two “ Hen Hawks” do not materi- 
ally differ, if at all. They are slightly prolonged, and are 
usually repeated several times at once, as keé-o, keé-o, keé-o. 
They are frequently heard, especially in spring, but are exactly 
imitated by the Blue Jays. 
(C) pennsytvanicus. Broad-winged Hawk (or Buzzard). 
(To be seen in Massachusetts during summer, and occasion- 
ally winter, but more common asa migrant.) 
(a). Eighteen inches long or less., Above, umber-brown, 
with more or less pale edging, and showing white on the hind- 
head. Tail banded and tipped with white. Under parts, 
white, variously streaked and barred with spots of medium or 
rufous brown, of which traces are often found above. Throat 
bordered on each side by a dark mazillary patch. Young with. 
much white above, but that of the tail replaced by light brown. 
This species, like the other buzzards, has the outer primary 
(and others) emarginate, i. e. with the inner web rather ab- 
ruptly narrow towards the end. This buzzard has three, our 
others four emarginate. 
(6). The nest does not essentially differ, so far as I know, 
from that of the Red-shouldered Hawk. An egg, which I took 
from a nest with three young, found near Boston on the six- 
teenth of May, measures 2°10 X 1°80 of an inch, and is white,- 
blotched and spotted with brown, chiefly of a purplish shade. 
(c). The-Broad-winged Buzzards are reported as common 
summetr-residents in many parts of northern New England. 
In Massachusetts, they are most common as migrants, but I 
have seen one in winter, and have found two nests near Boston, 
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